Probably too high of a calcium to magnesium ratio. Too much calcium is an issue. Cut out the cal-mag and see if it improves. If Interveinal chlorosis (magnesium issue) continues, add 1 tsp of Epsom salt per gallon of water to your base nutrients (Canna).

10-11 hours of light in flower and about 16 hours to keep light schedule in veg. Flowering plants are fucked without intense light but you can keep plants vegging under low light for 10-14 days.

It’s ok.

The loudest plants will need 6-8″ at least. Bigger the better.

H2O2 in high doses (4:1 water/peroxide) will kill microbes. 3% H2O2 at 1-2 tsp per gallon can boost oxygen levels of water without killing microbes. H2O2 will have no affect on chlorine. Chlorine will evap even without agitation and levels are not high enough to harm microbe populations anyway. Chloramines put in some city water can only…

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